When Bernie Sanders announced he was running, no one thought he would be relevant. No one would give Hillary Clinton a run for her money, this was her coronation. Now, five months after the first primary, Sanders has won 21 states and has stopped Clinton, at least temporarily, from winning the nomination. The race has been close, but if you look at the delegate counts for both candidates, it’s not.

Clinton has 2,310 delegates to Sanders’ 1,542. This is because of superdelegates. Superdelegates are party leaders, former Democratic Presidents and other elected Democratic officials. Superdelegates were put into place in the 1980s after severe Democratic defeats. Democratic primary voters were voting for to liberal Presidential candidates, like Hubert Humphrey and George McGovern, who were getting crushed in their respective general elections.

Both men lost the Electoral College. Humphrey lost by 110 electoral votes, while McGovern lost by over 500 electoral votes, winning only Massachusetts and DC. Democrats, after these blistering defeats, created superdelegates, to help the more moderate/establishment democrat win the Presidential nomination.

This system, not surprisingly, is favoring Clinton, who has the support of 531 superdelegates to Sander’s 43. This is what is giving her a 768 delegate lead over Sanders. Without superdelegates, she would only be ahead of Sanders by 270 delegates, a much closer race.
This whole situation is ironic. Bernie Sander’s campaign is about ending corruption, breaking up the powerful, etc., but his own party’s Presidential system for nominating a candidate, is corrupt. It is ignoring the will of the people, and is being decided by people who made the rules. So even if Sanders goes on to win every single primary from now until June, he will still lose.